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Aboismaiel MG, Amin MN, Eissa LA. Renoprotective effect of a novel combination of 6-gingerol and metformin in high-fat diet/streptozotocin-induced diabetic nephropathy in rats via targeting miRNA-146a, miRNA-223, TLR4/TRAF6/NLRP3 inflammasome pathway and HIF-1α. Biol Res 2024; 57:47. [PMID: 39033184 PMCID: PMC11265012 DOI: 10.1186/s40659-024-00527-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 06/29/2024] [Indexed: 07/23/2024] Open
Abstract
BACKGROUND MiRNA-146a and miRNA-223 are key epigenetic regulators of toll-like receptor 4 (TLR4)/tumor necrosis factor-receptor-associated factor 6 (TRAF6)/NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome pathway, which is involved in diabetic nephropathy (DN) pathogenesis. The currently available oral anti-diabetic treatments have been insufficient to halt DN development and progression. Therefore, this work aimed to assess the renoprotective effect of the natural compound 6-gingerol (GR) either alone or in combination with metformin (MET) in high-fat diet/streptozotocin-induced DN in rats. The proposed molecular mechanisms were also investigated. METHODS Oral gavage of 6-gingerol (100 mg/kg) and metformin (300 mg/kg) were administered to rats daily for eight weeks. MiRNA-146a, miRNA-223, TLR4, TRAF6, nuclear factor-kappa B (NF-κB) (p65), NLRP3, caspase-1, and hypoxia-inducible factor-1 alpha (HIF-1α) mRNA expressions were measured using real-time PCR. ELISA was used to measure TLR4, TRAF6, NLRP3, caspase-1, tumor necrosis factor-alpha (TNF-α), and interleukin-1-beta (IL-1β) renal tissue levels. Renal tissue histopathology and immunohistochemical examination of fibronectin and NF-κB (p65) were performed. RESULTS 6-Gingerol treatment significantly reduced kidney tissue damage and fibrosis. 6-Gingerol up-regulated miRNA-146a and miRNA-223 and reduced TLR4, TRAF6, NF-κB (p65), NLRP3, caspase-1, TNF-α, IL-1β, HIF-1α and fibronectin renal expressions. 6-Gingerol improved lipid profile and renal functions, attenuated renal hypertrophy, increased reduced glutathione, and decreased blood glucose and malondialdehyde levels. 6-Gingerol and metformin combination showed superior renoprotective effects than either alone. CONCLUSION 6-Gingerol demonstrated a key protective role in DN by induction of miRNA-146a and miRNA-223 expression and inhibition of TLR4/TRAF6/NLRP3 inflammasome signaling. 6-Gingerol, a safe, affordable, and abundant natural compound, holds promise for use as an adjuvant therapy with metformin in diabetic patients to attenuate renal damage and stop the progression of DN.
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Affiliation(s)
- Merna G Aboismaiel
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
| | - Mohamed N Amin
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Laila A Eissa
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
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2
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Kemaneci S, Keser A, Özmen Ö. Is resveratrol really effective in kidney disease?: A different perspective than ever before. Immunopharmacol Immunotoxicol 2024:1-9. [PMID: 38812267 DOI: 10.1080/08923973.2024.2360067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 05/18/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND Chronic kidney disease (CKD) is a global health problem and it is stated that the use of resveratrol supplement contributes to the protection of kidney health. In this study, it was aimed to evaluate the effect of resveratrol supplementation on kidney function, inflammation and histopathological findings in rats with experimental adenine-induced kidney damage. METHODS Three different groups of 10 randomly selected rats were formed. The first group was the negative control group, the second group was the uremic control group (KDG), and the third group was the group in which uremia was created and resveratrol was applied (RG). Kidney damage was induced by administration of 200 mg/kg adenine. Resveratrol supplementation was administered at 20 mg/kg after kidney damage. Serum urea, creatinine, indoxyl sulfate (IS), p-cresol, glomerular filtration rate, C-reactive protein (CRP); interleukin (IL)-6 and tumor necrosis factor (TNF)-α gene expression levels and histopathological findings were evaluated. RESULTS It was determined that resveratrol supplement applied after the formation of connective tissue in renal failure didn't have an improvement effect on the urine amount, kidney function and inflammatory parameters and histopathological changes (p > 0.05). Just, the increase in the CRP value of KDG (p < 0.05) was not observed in RG. CONCLUSION The findings suggest that resveratrol administered after kidney damage with adenine has no effect on kidney disease.
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Affiliation(s)
- Sümeyye Kemaneci
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Alev Keser
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Ankara University, Ankara, Turkey
| | - Özlem Özmen
- Department of Veterinary Pathology, Faculty of Veterinary, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
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3
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Ngamlai EV, Pradhan RB, Lalbiaknii PC, Ralte V, Lalnunmawia F, Vanlalhluna PC, Mehta SK. Diuretic activity evaluation and chemical composition analysis of Hedyotis scandens extract from Mizoram, India, in rat models. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117079. [PMID: 37659758 DOI: 10.1016/j.jep.2023.117079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/15/2023] [Accepted: 08/22/2023] [Indexed: 09/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Diuretics play a crucial role in addressing various medical conditions such as hypertension and edema. Across numerous communities, plants have served as diuretic agents, leveraging their abundant phytochemical composition. In certain instances, plant-based remedies have gained preference over synthetic drugs due to their affordability and ready availability. Hedyotis scandens Roxb., commonly recognized as Laikingtuibur/Kelhnamtur in Mizoram, belongs to the Rubiaceae family. This plant has been harnessed worldwide within diverse societies as a medicinal resource to combat a spectrum of ailments. Notably, in Mizoram, the leaves are employed in creating a decoction with diuretic properties. The ethnopharmacological exploration of plant diuretics not only preserves cultural traditions but also contribute to the potential discovery of novel therapeutic agents. AIM OF THE STUDY Our study endeavours to explore the traditional employment of this plant as a diuretic in Mizoram. Furthermore, we seek to elucidate the plant's chemical composition through the utilization of GC-MS analysis. MATERIALS AND METHODS In this investigation, we conducted plant extraction using methanol and distilled water as solvents within a soxhlet apparatus. Prior to commencing the main experiment, we conducted an acute toxicity test to ensure the safety of the plant extract. For the assessment of diuretic activity, we adopted the methodology outlined by Lipschitz et al. (1943). All in vivo experiments were conducted in strict accordance with the guidelines set forth by the OECD. Based on the outcomes of the acute toxicity evaluation, we opted for three dosage levels: a high dose (1000Â mg/kg), a medium dose (500Â mg/kg), and a low dose (250Â mg/kg). Furosemide, recognized as a loop diuretic, was employed as the standard reference, while the control group received distilled water. RESULTS Our investigation unveiled the presence of several uncharacterized bioactive compounds within the plant. Of particular interest, the GC-MS analysis identified a specific compound named 'phytol,' which has previously been associated with diuretic properties. Notably, the acute toxicity assessment demonstrated the plant extract's safety even at a high dose of 5000Â mg/kg, as no toxic effects were observed. The diuretic evaluation of the H. scandens extract exhibited a dose-dependent increase in diuresis, with the methanolic extract yielding notably superior outcomes compared to the aqueous extract. Moreover, the treated animals displayed an elevated output of electrolytes and an enhanced glomerular filtration rate in comparison to the control group. Notably, the histological examination of the kidneys from the treated animals depicted a normal structural configuration, devoid of any cellular-level modifications attributed to the plant extract across all tested doses. CONCLUSION The Hedyotis scandens extract demonstrated a pronounced diuretic effect in contrast to the control group. As such, our study substantiates the traditional employment of this plant as a diuretic within the Mizoram region.
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Affiliation(s)
| | - R B Pradhan
- Department of Botany, Mizoram University, Tanhril, 796004, India
| | - P C Lalbiaknii
- Department of Botany, Mizoram University, Tanhril, 796004, India
| | - Vanlalhruaii Ralte
- Department of Botany, Pachhunga University College, Aizawl, 796001, India.
| | - F Lalnunmawia
- Department of Botany, Mizoram University, Tanhril, 796004, India
| | - P C Vanlalhluna
- Department of Botany, Pachhunga University College, Aizawl, 796001, India
| | - S K Mehta
- Department of Botany, Mizoram University, Tanhril, 796004, India
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4
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Al-Tantawy SM, Eraky SM, Eissa LA. Promising renoprotective effect of gold nanoparticles and dapagliflozin in diabetic nephropathy via targeting miR-192 and miR-21. J Biochem Mol Toxicol 2023; 37:e23430. [PMID: 37352119 DOI: 10.1002/jbt.23430] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 03/04/2023] [Accepted: 06/12/2023] [Indexed: 06/25/2023]
Abstract
Diabetic nephropathy (DN) is a worldwide issue that eventually leads to end-stage renal failure, with limited therapeutic options. Prior research has revealed that gold nanoparticles (AuNPs) have a substantial antidiabetic impact. In addition, sodium-glucose cotransporter2 (SGLT2) inhibitors, including dapagliflozin (DAPA), had renoprotective impact on DN. Therefore, this research attempted to determine the potential AuNPs and DAPA impacts in ameliorating experimentally DN induction and the underlying mechanisms focusing on miR-192 and miR-21, correlating them with autophagy, apoptosis, fibrosis, and oxidative stress. Diabetes induction was through a single intraperitoneal streptozotocin (55 mg/kg) injection, and rats with diabetes received AuNPs (2.5 mg/kg/day) as well as DAPA (2 mg/kg/day) for 7 weeks as a treatment. AuNPs and DAPA treatment for 7 weeks substantially alleviated DN. AuNPs and DAPA significantly increased catalase (CAT) activity as well as serum total antioxidant capacity (TAC), along with a substantial decline in malondialdehyde (MDA). AuNPs and DAPA treatment alleviated renal fibrosis as they decreased transforming growth factorß1(TGF-ß1) as well as matrix metalloproteinase-2 (MMP-2) renal expression, decreased apoptosis through alleviating the proapoptotic gene (caspase-3) renal expression and increased the antiapoptotic gene (Bcl-2) renal expression, and increased autophagy as they increased LC-3 as well as Beclin-1 renal expression. Autophagy activation, inhibition of apoptosis, and renal fibrosis could be due to their inhibitory impact on miR-192 and miR-21 renal expression. AuNPs and DAPA have a protective effect on DN in rats by targeting miR-192 and miR-21 and their downstream pathways, including fibrosis, apoptosis, autophagy, and oxidative stress.
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Affiliation(s)
- Samar M Al-Tantawy
- Biochemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Salma M Eraky
- Biochemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Laila A Eissa
- Biochemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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5
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Rizk FH, El Saadany AA, Atef MM, Abd-Ellatif RN, El-Guindy DM, Abdel Ghafar MT, Shalaby MM, Hafez YM, Mashal SSA, Basha EH, Faheem H, Barhoma RAE. Ulinastatin ameliorated streptozotocin-induced diabetic nephropathy: Potential effects via modulating the components of gut-kidney axis and restoring mitochondrial homeostasis. Pflugers Arch 2023; 475:1161-1176. [PMID: 37561129 PMCID: PMC10499971 DOI: 10.1007/s00424-023-02844-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/17/2023] [Accepted: 07/21/2023] [Indexed: 08/11/2023]
Abstract
Growing evidence supports the role of the gut-kidney axis and persistent mitochondrial dysfunction in the pathogenesis of diabetic nephropathy (DN). Ulinastatin (UTI) has a potent anti-inflammatory effect, protecting the kidney and the gut barrier in sepsis, but its effect on DN has yet to be investigated. This study aimed to assess the potential mitigating effect of UTI on DN and investigate the possible involvement of gut-kidney axis and mitochondrial homeostasis in this effect. Forty male Wistar rats were divided equally into four groups: normal; UTI-treated control; untreated DN; and UTI-treated DN. At the end of the experiment, UTI ameliorated DN by modulating the gut-kidney axis as it improved serum and urinary creatinine, urine volume, creatinine clearance, blood urea nitrogen, urinary albumin, intestinal morphology including villus height, crypt depth, and number of goblet cells, with upregulating the expression of intestinal tight-junction protein claudin-1, and counteracting kidney changes as indicated by significantly decreasing glomerular tuft area and periglomerular and peritubular collagen deposition. In addition, it significantly reduced intestinal and renal nuclear factor kappa B (NF-κB), serum Complement 5a (C5a), renal monocyte chemoattractant protein-1 (MCP-1), renal intercellular adhesion molecule 1 (ICAM1), and renal signal transducer and activator of transcription 3 (STAT3), mitochondrial dynamin related protein 1 (Drp1), mitochondrial fission 1 protein (FIS1), mitochondrial reactive oxygen species (ROS), renal hydrogen peroxide (H2O2), and 8-hydroxy-2'-deoxyguanosine (8-OHdG) levels. Furthermore, it significantly increased serum short chain fatty acids (SCFAs), and mitochondrial ATP levels and mitochondrial transmembrane potential. Moreover, there were significant correlations between measured markers of gut components of the gut-kidney axis and renal function tests in UTI-treated DN group. In conclusion, UTI has a promising therapeutic effect on DN by modulating the gut-kidney axis and improving renal mitochondrial dynamics and redox equilibrium.
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Affiliation(s)
- Fatma H Rizk
- Department of Physiology, Faculty of Medicine, Tanta University, Tanta, Egypt.
| | - Amira A El Saadany
- Department of Pharmacology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Marwa Mohamed Atef
- Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | - Dina M El-Guindy
- Department of Pathology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | - Marwa M Shalaby
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Yasser Mostafa Hafez
- Department of Internal Medicine, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | - Eman H Basha
- Department of Physiology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Heba Faheem
- Department of Physiology, Faculty of Medicine, Tanta University, Tanta, Egypt
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6
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Yao X, Liu Y, Yang Y, Li Y, Hu N, Song F, Yang F. Microcystin-LR-Exposure-Induced Kidney Damage by Inhibiting MKK6-Mediated Mitophagy in Mice. Toxins (Basel) 2023; 15:404. [PMID: 37368704 DOI: 10.3390/toxins15060404] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/07/2023] [Accepted: 04/10/2023] [Indexed: 06/29/2023] Open
Abstract
Previous studies have reported that microcystin-LR (MC-LR) levels are highly correlated with abnormal renal function indicators, suggesting that MC-LR is an independent risk factor for kidney damage. However, the evidence for the exact regulation mechanism of MC-LR on kidney damage is still limited, and further in-depth exploration is needed. In addition, the mitochondria-related mechanism of MC-LR leading to kidney damage has not been elucidated. To this end, the present study aimed to further explore the mechanism of mitophagy related to kidney damage induced by MC-LR through in vitro and in vivo experiments. Male C57BL/6 mice were fed with a standard rodent pellet and exposed daily to MC-LR (20 μg/kg·bw) via intraperitoneal injections for 7 days. Moreover, HEK 293 cells were treated with MC-LR (20 μM) for 24 h. The histopathological results exhibited kidney damage after MC-LR exposure, characterized by structurally damaged nephrotomies, with inflammatory cell infiltration. Similarly, a significant increase in renal interstitial fibrosis was observed in the kidneys of MC-LR-treated mice compared with those of the control group (CT) mice. MC-LR exposure caused impaired kidney function, with markedly increased blood urea nitrogen (BUN), creatinine (Cr), and uric acid (UA) levels in mice. Ultrastructural analysis exhibited obviously swollen, broken, and disappearing mitochondrial crests, and partial mitochondrial vacuoles in the MC-LR-treated HEK 293 cells. The Western blotting results demonstrated that exposure to MC-LR significantly increased the protein expressions of MKK6, p-p38, and p62, while the expression of mitophagy-related proteins was significantly inhibited in the kidneys of mice and HEK293 cells, including parkin, TOM20, and LC3-II, indicating the inhibition of mitophagy. Therefore, our data suggest that the inhibition of MKK6-mediated mitophagy might be the toxicological mechanism of kidney toxicity in mice with acute exposure to MC-LR.
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Affiliation(s)
- Xueqiong Yao
- Department of Epidemiology and Health Statistics, The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Basic Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Ying Liu
- Department of Epidemiology and Health Statistics, The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Basic Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Yue Yang
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha 410017, China
| | - Yafang Li
- Department of Epidemiology and Health Statistics, The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Basic Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Na Hu
- Department of Epidemiology and Health Statistics, The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Basic Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Fengmei Song
- Department of Epidemiology and Health Statistics, The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Basic Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Fei Yang
- Department of Epidemiology and Health Statistics, The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Basic Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha 410017, China
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210000, China
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7
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Chen J, Akhtar M, Hardej D. Exposure to dithiocarbamate fungicide Ziram results in hepatic and renal toxicity in Long Evan rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 99:104116. [PMID: 37011740 DOI: 10.1016/j.etap.2023.104116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 06/19/2023]
Abstract
Ziram is a dimethyldithiocarbamate fungicide that is complexed to the metal zinc. The focus of this study is to examine the effects of dimethyldithiocarbamate exposure on metal homeostasis, glutathione levels, and the physiological parameters of the kidney and liver in Long-Evan rats. Our results indicate significant accumulation of copper or zinc, and changes in total GSH or GSH/GSSG ratio in the liver and kidneys of animals treated with Ziram only. Histopathological examination of liver and kidney sections indicate the presence of infiltrates in the liver of animals treated with Ziram only, whereas protein aggregates, sloughing of cells and increased KIM-1 positive cells, an indicator of tubule deterioration, are seen in the kidneys of animals treated with Ziram and sodium-dimethyldithiocarbamate, the salt form of the dimethyldithiocarbmate backbone. These findings suggest that the overall toxicological effect of Ziram is mediated by an intrinsic property rather than to dimethyldithiocarbamate backbone or metal moiety.
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Affiliation(s)
- Jeffrey Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Jamaica, NY 11439, USA
| | - Mumtaz Akhtar
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Jamaica, NY 11439, USA
| | - Diane Hardej
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Jamaica, NY 11439, USA.
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8
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Alshammari GM, Al-Ayed MS, Abdelhalim MA, Al-Harbi LN, Yahya MA. Effects of Antioxidant Combinations on the Renal Toxicity Induced Rats by Gold Nanoparticles. Molecules 2023; 28:molecules28041879. [PMID: 36838869 PMCID: PMC9959587 DOI: 10.3390/molecules28041879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/03/2023] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
This study investigated some possible mechanisms underlying the nephrotoxic effect of gold nanoparticles (AuNPs) in rats and compared the protective effects of selected known antioxidants-namely, melanin, quercetin (QUR), and α-lipoic acid (α-LA). Rats were divided into five treatment groups (eight rats per group): control, AuNPs (50 nm), AuNPs + melanin (100 mg/kg), AuNPs + QUR (200 mg/kg), and AuNPs + α-LA (200 mg/kg). All treatments were administered i.p., daily, for 30 days. AuNPs promoted renal glomerular and tubular damage and impaired kidney function, as indicated by the higher serum levels of creatinine (Cr), urinary flow, and urea and albumin/Cr ratio. They also induced oxidative stress by promoting mitochondrial permeability transition pore (mtPTP) opening, the expression of NOX4, increasing levels of malondialdehyde (MDA), and suppressing glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT). In addition, AuNPs induced renal inflammation and apoptosis, as evidenced by the increase in the total mRNA and the cytoplasmic and nuclear levels of NF-κB, mRNA levels of Bax and caspase-3, and levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6). Treatment with melanin, QUR, and α-lipoic acid (α-LA) prevented the majority of these renal damage effects of AuNPs and improved kidney structure and function, with QUR being the most powerful. In conclusion, in rats, AuNPs impair kidney function by provoking oxidative stress, inflammation, and apoptosis by suppressing antioxidants, promoting mitochondrial uncoupling, activating NF-κB, and upregulating NOX4. However, QUR remains the most powerful drug to alleviate this toxicity by reversing all of these mechanisms.
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Affiliation(s)
- Ghedeir M. Alshammari
- Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
- Correspondence:
| | - Mohammed S. Al-Ayed
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed Anwar Abdelhalim
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Laila Naif Al-Harbi
- Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammed Abdo Yahya
- Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
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9
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Atia T, Sakr HI, Damanhory AA, Moawad K, Alsawy M. The protective effect of green tea on diabetes-induced hepato-renal pathological changes: a histological and biochemical study. Arch Physiol Biochem 2023; 129:168-179. [PMID: 32816576 DOI: 10.1080/13813455.2020.1806885] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We investigated the protective effect of green tea on diabetic hepato-renal complications. Thirty male Wistar rats were randomly divided into five equal groups: normal control, diabetic control, glibenclamide-treated, green tea-treated, and combined therapy-treated groups; ethical approval number "BERC-014-01-20." After eight weeks, animals were sacrificed by CO2 euthanasia method, liver and kidney tissues were processed and stained for pathological changes, and blood samples were collected for biochemical analysis. Diabetic rats showed multiple hepato-renal morphological and apoptotic changes associated with significantly increased some biochemical parameters, while serum albumin and HDL decreased significantly compared to normal control (p < .05). Monotherapy can induce significant improvements in pathological and biochemical changes but has not been able to achieve normal patterns. In conclusion, green tea alone has a poor hypoglycaemic effect but can reduce diabetic complications, whereas glibenclamide cannot prevent diabetic complications. The addition of green tea to oral hypoglycaemic therapy has shown a potent synergistic effect.
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Affiliation(s)
- Tarek Atia
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences Prince, Sattam Bin Abdulaziz University, Al-Kharj, KSA
- Department of Histology and Cytology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Hader I Sakr
- Department of Medical Physiology, Faculty of Medicine, Cairo University, Cairo, Egypt
- Batterjee Medical College, Jeddah, KSA
| | - Ahmed A Damanhory
- Batterjee Medical College, Jeddah, KSA
- Department of Biochemistry, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Karim Moawad
- School of Biological Science, UCI, Irvine, CA, USA
| | - Moustfa Alsawy
- Department of Histology and Cytology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
- Batterjee Medical College, Jeddah, KSA
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10
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Cornejo MA, Jardines E, Nishiyama A, Nakano D, Ortiz RM. Simultaneous SGLT2 inhibition and caloric restriction improves insulin resistance and kidney function in OLETF rats. Mol Cell Endocrinol 2023; 560:111811. [PMID: 36397615 DOI: 10.1016/j.mce.2022.111811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 10/21/2022] [Accepted: 10/22/2022] [Indexed: 11/08/2022]
Abstract
SGLT2 inhibitors (SGLT2i) are emerging as a novel therapy for type 2 diabetes due to their effective hypoglycemic and potential cardio- and nephroprotective effects, while caloric restriction (CR) is a common behavioral modification to improve adiposity and insulin resistance. Therefore, both interventions simultaneously may potentially further improve metabolic syndrome by enhancing carbohydrate metabolism. To test this hypothesis, cohorts of 10-week old, male Long Evans Tokushima Otsuka (LETO) and Otsuka Long Evans Tokushima Fatty (OLETF) rats were treated with SGLT2i (10Â mg luseoglifozin/kg/day x 4Â wks) (OLETF only) and/or 30% CR (2Â wks at 12 weeks of age). CR maintained body mass in both strains while SGLT2i alone did not have any effect on body mass. Simultaneous treatments decreased SBP in OLETF vs SGLT2i alone, decreased insulin resistance index (IRI), and increased creatinine clearance vs OLETF ad lib. Conversely, CR decreased albuminuria independent of SGLT2i. In conclusion, SGLT2i treatment by itself did not elicit significant improvements in insulin resistance, kidney function or blood pressure. However, when combined with CR, these changes where more profound than with CR alone without inducing chronic hypoglycemia.
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Affiliation(s)
- Manuel A Cornejo
- Department of Molecular & Cell Biology, School of Natural Sciences, University of California, Merced, CA, USA.
| | - Eira Jardines
- Department of Molecular & Cell Biology, School of Natural Sciences, University of California, Merced, CA, USA
| | - Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Daisuke Nakano
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Rudy M Ortiz
- Department of Molecular & Cell Biology, School of Natural Sciences, University of California, Merced, CA, USA
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Silva PH, Silva PH, Corazza AV, Silva JGD, Silva IS. Experimental model of nephropathy associated with diabetes mellitus in mice. Acta Cir Bras 2023; 38:e381123. [PMID: 37132755 PMCID: PMC10158849 DOI: 10.1590/acb381123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 02/22/2023] [Indexed: 05/04/2023] Open
Abstract
PURPOSE Nontransmissible chronic diseases, such as diabetes mellitus (DM) and nephropathy, affect a significant portion of the population, often treated due to injuries that require healing and regeneration. To create an experimental model of associated comorbidities, for healing and regeneration studies, protocols for induction of nephropathy by ischemia and reperfusion (I/R) and induction of DM by injection of streptozotocin (STZ) were associated. METHODS Sixty-four mice (Mus musculus), female, adult, Swiss strain, weighing approximately 20 g, were divided into four groups: G1: control (n = 24), G2: nephropathy group (N) (n = 7), G3, DM (n = 9), and G4: N+DM (n = 24). Arteriovenous stenosis (I/R) of the left kidney was performed as the first protocol. The animals received a hyperlipidemic diet for 7 days after the injection of STZ (150 mg/kg, via i.p.) and an aqueous glucose solution (10%) for 24 h. The animals in the G3 and G4 groups were observed for 14 days before receiving the diet and STZ. The evolution of nephropathy was observed using a urine test strip and the DM, through the analysis of blood glucose with a reagent strip on a digital monitor. RESULTS The ischemic induction protocols of nephropathy and DM with STZ, associated, were sustainable, low-cost, and without deaths. There were alterations compatible with initial renal alterations, in the first 14 days, such as increased urinary density, pH alteration, presence of glucose, proteins and leukocytes, when compared to the control group. DM was confirmed by the presence of hyperglycemia 7 days after induction and its evolution after 14 days. The animals in the G4 group showed constant weight loss when compared to the other groups. It was possible to observe morphological alterations in the kidneys submitted to I/R, regarding coloration, during surgery and after the end of the observation period, in the volume and size of the left kidney, when compared to the contralateral kidney. CONCLUSIONS It was possible to induce nephropathy and DM associated in the same animal, in a simple way, confirmed with rapid tests, without losses, providing a basis for future studies.
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Affiliation(s)
- Pâmela Henrique Silva
- Universidade Federal de Mato Grosso do Sul - Programa de Pós-Graduação em Saúde e Desenvolvimento na Região CentroOeste - Campo Grande (MS), Brazil
| | - PatrÃcia Henrique Silva
- Universidade Federal de Mato Grosso do Sul - Programa de Pós-Graduação em Saúde e Desenvolvimento na Região CentroOeste - Campo Grande (MS), Brazil
| | - Adalberto Vieira Corazza
- Universidade Federal de Mato Grosso do Sul - Câmpus de Três Lagoas - Campo Grande (MS), Brazil
| | - Josivaldo Godoy da Silva
- Universidade Federal de Mato Grosso do Sul - Programa de Pós-Graduação em Saúde e Desenvolvimento na Região CentroOeste - Campo Grande (MS), Brazil
| | - Iandara Schettert Silva
- Universidade Federal de Mato Grosso do Sul - Programa de Pós-Graduação em Saúde e Desenvolvimento na Região CentroOeste - Campo Grande (MS), Brazil
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12
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Abdelwahed OM, Aboulhoda BE, Awadallah MY, Gouda SAA, Abdallah H, Rashed L, Khaled M, Ghobrial EE, Alghabban HM, Sharawy N. Prediction of acute kidney injury using a combined model of inflammatory vascular endothelium biomarkers and ultrasound indices. Clin Hemorheol Microcirc 2023; 84:283-301. [PMID: 37212089 DOI: 10.3233/ch-231754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
BACKGROUND Acute kidney injury (AKI) is a common complication of sepsis, with the burden of long hospital admission. Early prediction of AKI is the most effective strategy for intervention and improvement of the outcomes. OBJECTIVE In our study, we aimed to investigate the predictive performance of the combined model using ultrasound indices (grayscale and Doppler indieces), endothelium injury (E-selectin, VCAM-1, ICAM1, Angiopoietin 2, syndecan-1, and eNOS) as well as inflammatory biomarkers (TNF-a, and IL-1β) to identify AKI. METHODS Sixty albino rats were divided into control and lipopolysaccharide (LPS) groups. Renal ultrasound, biochemical and immunohistological variables were recorded 6 hrs, 24 hrs, and 48 hrs after AKI. RESULTS Endothelium injury and inflammatory markers were found to be significantly increased early after AKI, and correlated significantly with kidney size reduction and renal resistance indices elevation. CONCLUSIONS Using area under the curve (AUC), the combined model was analyzed based on ultrasound and biochemical variables and provided the highest predictive value for renal injury.
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Affiliation(s)
| | | | - Maryse Youssef Awadallah
- Department of Diagnostic and Interventional Radiology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Hend Abdallah
- Department of Anatomy, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Laila Rashed
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mai Khaled
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Emad E Ghobrial
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hadel M Alghabban
- Department of Biochemistry and Molecular Medicine, College of Medicine, Taibah University, Medina, Saudi Arabia
| | - Nivin Sharawy
- Department of Medical Physiology, Faculty of Medicine, Cairo University, Cairo, Egypt
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13
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Soetikno V, Murwantara A, Jusuf AA, Louisa M. Alpha-mangostin counteracts hyperuricemia and renal dysfunction by inhibiting URAT1 renal transporter in insulin resistance rat model. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2022. [DOI: 10.1186/s43088-022-00275-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Alpha-mangostin (AM) has been shown to have hypoglycemic activity. This study aimed to analyze the effects of AM at a dose of 100Â mg/kg and 200Â mg/kg to alleviate hyperuricemia and renal dysfunction on high-fat/high-glucose diet and low dose streptozotocin (HF/HG/STZ) injection-induced IR rat model. IR was induced in male Wistar rats by giving a HF/HG diet for 11Â weeks and single injection of STZ (35Â mg/kg, i.p.), then divided randomly into IR rats, IR rats treated with AM 100 and 200Â mg/kgBW given by gavage for 8Â weeks. At the end of the 11th week, all rats were killed, and the kidneys were taken to be analyzed for urate transporters 1 (URAT1) and glucose transporters 9 (GLUT9). We also assessed serum uric acid, proteinuria, BUN, creatinine clearance, HOMA-IR, and fasting blood glucose (FBG).
Results
We have found the significant increase in HOMA-IR and FBG levels of the IR rats, in comparison with its control groups, which were decreased significantly after AM administration at both doses. URAT1 and GLUT9 mRNA and protein expressions in kidney in the IR + AM at both doses groups also decreased compared those in the IR without treatment group, though the decrease in GLUT9 did not appear to be statistically significant. Consequently, hyperuricemia and renal dysfunction were attenuated by AM treatment at both doses.
Conclusion
After considering all findings, AM might be a potential candidate to ameliorate IR-induced hyperuricemia and renal dysfunction at least in part by modulating the renal URAT1.
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14
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Antioxidant Mechanism of Renal and Hepatic Failure Prevention Related to Paracetamol Overdose by the Aqueous Extract of Amblygonocarpus andongensis Stem Bark. BIOMED RESEARCH INTERNATIONAL 2022; 2022:1846558. [PMID: 35909484 PMCID: PMC9334103 DOI: 10.1155/2022/1846558] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 06/30/2022] [Indexed: 11/24/2022]
Abstract
Paracetamol is a commonly used analgesic/antipyretic whose long-term intake or overdose is associated with renal and hepatic injuries. The aim of this study was to determine the hepatonephroprotective mechanisms of the aqueous extract of Amblygonocarpus andongensis stem bark (AEAASB) on renal and hepatic failure resulting from paracetamol overdose. Forty-five rats were divided into nine groups (n = 5); these were treated once daily for 8 days with 5 ml/kg distilled water (normal, negative, and satellite controls); 0.9% normal saline and 140 mg/kg N-acetyl-cysteine (positive controls); 125, 250, and 500 mg/kg AEAASB (test groups); and 500 mg/kg AEAASB (satellite test). On day 8 after different treatments, hepatonephrotoxicity was induced in all the groups except the normal group by oral administration of a single dose of paracetamol (1000 mg/kg). Urinary, hematological, serum, and oxidative stress parameters and in vitro antioxidant activity of AEAASB were evaluated. Histological sections of the liver and kidney were performed. AEAASB significantly decreased urea, creatinine, transaminases, alkaline phosphatase, and bilirubin (p < 0.001) at 500 mg/kg compared to the negative control. Significant decreases in hepatic (p < 0.01) and renal (p < 0.001) malondialdehyde levels were associated with increases in superoxide dismutase, catalase, and reduced glutathione levels in 500 mg/kg AEAASB compared with the negative control. Histological analysis showed that AEAASB prevented paracetamol-induced renal and liver tissue damage. Furthermore, AEAASB revealed a very strong antioxidant activity (inhibitory concentration 50 = 180 μg/ml, antioxidant activity index = 5.55) with an ability to scavenge 63.03% 2,2-diphenyl-2-picrylhy-drazyl radical and reduced ferric iron by 52.68 mgEqVitC/100 g DM. The hepatonephroprotective effect of AEAASB might result from its ability to improve the antioxidant status through the stimulation of antioxidant factors and the scavenging of free radicals. This property could be ascribed to the presence of some classes of bioactive compounds such as phenolic compounds in great amounts.
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15
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Simko P, Leskanicova A, Suvakova M, Blicharova A, Karasova M, Goga M, Kolesarova M, Bojkova B, Majerova P, Zidekova N, Barvik I, Kovac A, Kiskova T. Biochemical Properties of Atranorin-Induced Behavioral and Systematic Changes of Laboratory Rats. Life (Basel) 2022; 12:life12071090. [PMID: 35888178 PMCID: PMC9316313 DOI: 10.3390/life12071090] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/18/2022] [Accepted: 07/18/2022] [Indexed: 11/16/2022] Open
Abstract
Atranorin (ATR) is a secondary metabolite of lichens. While previous studies investigated the effects of this substance predominantly in an in vitro environment, in our study we investigated the basic physicochemical properties, the binding affinity to human serum albumin (HSA), basic pharmacokinetics, and, mainly, on the systematic effects of ATR in vivo. Sporadic studies describe its effects during, predominantly, cancer. This project is original in terms of testing the efficacy of ATR on a healthy organism, where we can possibly attribute negative effects directly to ATR and not to the disease. For the experiment, 24 Sprague Dawley rats (Velaz, Únetice, Czech Republic) were used. The animals were divided into four groups. The first group (n = 6) included healthy males as control intact rats (♂INT) and the second group (n = 6) included healthy females as control intact rats (♀INT). Groups three and four (♂ATR/n = 6 and ♀ATR/n = 6) consisted of animals with daily administered ATR (10mg/kg body weight) in an ethanol-water solution per os for a one-month period. Our results demonstrate that ATR binds to HSA near the binding site TRP214 and acts on a systemic level. ATR caused mild anemia during the treatment. However, based on the levels of hepatic enzymes in the blood (ALT, ALP, or bilirubin levels), thiobarbituric acid reactive substances (TBARS), or liver histology, no impact on liver was recorded. Significantly increased creatinine and lactate dehydrogenase levels together with increased defecation activity during behavioral testing may indicate the anabolic effect of ATR in skeletal muscles. Interestingly, ATR changed some forms of behavior. ATR at a dose of 10 mg/kg body weight is non-toxic and, therefore, could be used in further research.
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Affiliation(s)
- Patrik Simko
- Institute of Biology and Ecology, Faculty of Sciences, Pavol Jozef Safarik University, 040 01 Kosice, Slovakia; (P.S.); (A.L.); (M.G.); (M.K.); (B.B.)
| | - Andrea Leskanicova
- Institute of Biology and Ecology, Faculty of Sciences, Pavol Jozef Safarik University, 040 01 Kosice, Slovakia; (P.S.); (A.L.); (M.G.); (M.K.); (B.B.)
| | - Maria Suvakova
- Institute of Chemistry, Faculty of Sciences, Pavol Jozef Safarik University, 040 01 Kosice, Slovakia;
| | - Alzbeta Blicharova
- Institute of Pathology, Faculty of Medicine, Pavol Jozef Safarik University, 040 01 Kosice, Slovakia;
| | - Martina Karasova
- Small Animal Clinic, University of Veterinary Medicine and Pharmacy, 041 81 Kosice, Slovakia;
| | - Michal Goga
- Institute of Biology and Ecology, Faculty of Sciences, Pavol Jozef Safarik University, 040 01 Kosice, Slovakia; (P.S.); (A.L.); (M.G.); (M.K.); (B.B.)
| | - Mariana Kolesarova
- Institute of Biology and Ecology, Faculty of Sciences, Pavol Jozef Safarik University, 040 01 Kosice, Slovakia; (P.S.); (A.L.); (M.G.); (M.K.); (B.B.)
| | - Bianka Bojkova
- Institute of Biology and Ecology, Faculty of Sciences, Pavol Jozef Safarik University, 040 01 Kosice, Slovakia; (P.S.); (A.L.); (M.G.); (M.K.); (B.B.)
| | - Petra Majerova
- Institute of Neuroimmunology, Slovak Academy of Sciences, 831 01 Bratislava, Slovakia; (P.M.); (A.K.)
| | - Nela Zidekova
- Biomedical Center Martin (BioMed), Jessenius Faculty of Medicine in Martin, Comenius University, 814 99 Bratislava, Slovakia;
| | - Ivan Barvik
- Institute of Physics, Faculty of Mathematics and Physics, Charles University, 110 00 Prague, Czech Republic;
| | - Andrej Kovac
- Institute of Neuroimmunology, Slovak Academy of Sciences, 831 01 Bratislava, Slovakia; (P.M.); (A.K.)
| | - Terezia Kiskova
- Institute of Biology and Ecology, Faculty of Sciences, Pavol Jozef Safarik University, 040 01 Kosice, Slovakia; (P.S.); (A.L.); (M.G.); (M.K.); (B.B.)
- Correspondence: ; Tel.: +421-55-234-1216
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16
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Silva PH, Silva PH, Facco GG, Corazza AV, da Silva JG, Silva IS. Effect of electrophysical resources on healing of neurotendinous injury in an experimental model of type I diabetes and kidney disease. Acta Cir Bras 2022; 37:e370402. [PMID: 35766669 PMCID: PMC9239559 DOI: 10.1590/acb370402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/26/2022] [Accepted: 03/27/2022] [Indexed: 12/12/2022] Open
Abstract
PURPOSE To evaluate and describe the effect of electrophysical resources laser therapy (LLLT), intravascular laser blood irradiation (ILIB), and cryotherapy on the healing process of neurotendinous injury, as well as possible systemic changes, in the experimental model of type 1 diabetes associated with kidney injury. METHODS The animals were randomized into four groups: G1) healthy control with untreated injury; G2) healthy control with injury and treatment; G3) disease control with untreated lesion; G4) disease with injury and treatment. Furthermore, the treated groups were divided into three, according to the type of treatment. All animals were induced to neurotendinous injury and treated according to the therapeutic protocols. Healing and inflammation were analyzed by semiquantitative histopathological study. RESULTS It was observed in sick animals treated with cryotherapy and ILIB reduction of inflammatory exudate, presence of fibroblasts and organization of collagen, when compared to the effects of LLLT. Moreover, there was reduction in glycemic levels in the group treated with ILIB. CONCLUSIONS Cryotherapy promoted reduction in inflammatory exudate and organization of collagen fibers, in addition to the absence of signs of tissue necrosis, in the groups treated with and without the disease. ILIB therapy showed the same findings associated with significant reduction in glycemic levels in the group of diseased animals. The application of LLLT showed increased inflammatory exudate, low organization of collagen fibers and low sign of tissue degeneration and necrosis. This study in a model of associated diseases (diabetes and kidney disease) whose effects of electrophysical resources studied after neurotendinous injury allows us to verify histopathological variables suggestive of patients with the same comorbidities.
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Affiliation(s)
- PatrÃcia Henrique Silva
- Fellow Master’s degree. Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development – Campo Grande (MS), Brazil
| | - Pâmela Henrique Silva
- Fellow Master’s degree. Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development – Campo Grande (MS), Brazil
| | - Gilberto Gonçalves Facco
- PhD. Universidade Anhanguera – Postgraduate Program in Environments and Regional Development – Campo Grande (MS), Brazil
| | | | - Josivaldo Godoy da Silva
- PhD. Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development – Campo Grande (MS), Brazil
| | - Iandara Schettert Silva
- PhD. Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development – Campo Grande (MS), Brazil
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17
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AlMousa LA, AlFaris NA, Alshammari GM, Alsayadi MM, ALTamimi JZ, Alagal RI, Yahya MA. Rumex nervosus could alleviate streptozotocin-induced diabetic nephropathy in rats by activating Nrf2 signaling. Sci Prog 2022; 105:368504221102751. [PMID: 35619568 PMCID: PMC10358522 DOI: 10.1177/00368504221102751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This study tested the protective effect of Rumex nervous (R. nervosus) methanol extract against streptozotocin (STZ)-mediated type 1 diabetes mellitus (T1DM)-induced nephropathy in rats and examined if this protection involves activating the nuclear factor erythroid 2 related factor-2 (Nrf2). Rats were divided into control, R. nervous (300 mg), STZ (T1DM), STZ + R. nervosus (100, 200, or 300 mg/kg), and STZ + R. nervosus (300 mg/kg) + brusatol (an Nrf2 inhibitor). With no effect on fasting glucose and insulin levels, R. nervosus methanol extract preserved kidney histological structure and alterations kidney function markers (e.g. albumin, creatinine, and urine volume) in the STZ-diabetic rats. R. nervosus also reduced levels of reactive oxygen species (ROS), malondialdehyde (MDA), tumor necrosis factor-α (TNF-α), and interleukine-6 (IL-6), nuclear levels of the nuclear factor kappa beta (NF-κB), and mRNA of caspase-3 and Bax in the kidneys of these diabetic rats. Concomitantly, it stimulated renal mRNA levels of Bcl2 and Nrf2, cytoplasmic and nuclear levels of Nrf2, and levels of glutathione (GSH), catalase (CAT), and superoxide dismutase (SOD). All these effects were dose-dependent, with the maximum effect seen with the 300 mg/kg dose, all prevented by brusatol. Also, these effects occurred without any alteration in the transcription of the Kelch-like ECH-associated protein 1 (keap-1). Similar effects on levels of GSH, SOD, CAT, and NF-κB, as well as expression of Nrf2, were also observed in the kidney of control + R. nervous-treated rats. In conclusion, R. nervosus prevents diabetic nephropathy in rats by upregulating and activating Nrf2.
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Affiliation(s)
- Lujain A AlMousa
- Nutrition and Food Science, Department of Physical Sport Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Nora A AlFaris
- Nutrition and Food Science, Department of Physical Sport Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ghedeir M Alshammari
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Muneer M Alsayadi
- Department of Food Science and Technology, Faculty of Agriculture and Food Science, Ibb University, Ibb, Yemen
| | - Jozaa Z ALTamimi
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Reham I Alagal
- Nutrition and Food Science, Department of Physical Sport Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mohammed Abdo Yahya
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
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18
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Abd El-Khalik SR, Nasif E, Arakeep HM, Rabah H. The Prospective Ameliorative Role of Zinc Oxide Nanoparticles in STZ-Induced Diabetic Nephropathy in Rats: Mechanistic Targeting of Autophagy and Regulating Nrf2/TXNIP/NLRP3 Inflammasome Signaling. Biol Trace Elem Res 2022; 200:1677-1687. [PMID: 34241775 DOI: 10.1007/s12011-021-02773-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 05/28/2021] [Indexed: 12/31/2022]
Abstract
Diabetic nephropathy (DN) as one of the common microvascular complications of diabetes mellitus, is the main cause of end-stage renal disease. Zinc oxide nanoparticles (ZnO NPs) have been employed in several biomedical aspects. This study purposed to explore the mechanistic renoprotective effects of ZnO NPs in STZ-induced DN. Sixty male Wistar rats were allocated into four equal groups: control, ZnO NPs control, STZ, and STZ + ZnO NPs groups. At the end of the experiment, blood and urine biochemical parameters were assayed. Renal tissue level of advanced glycation end products (AGEs) was assayed spectrofluorometrically, moreover, nuclear factor erythroid 2-related factor 2 (Nrf2) DNA-binding activity and IL-1β levels were detected by ELISA. The gene expression levels of thioredoxin-interacting protein (TXNIP) and NOD-like receptor family pyrin domain containing 3 (NLRP3) were detected by quantitative real-time PCR. Oxidative stress markers were determined spectrophotometrically. Also, renal tissue histopathological and immunohistochemical analyses were determined. After 6 weeks of treatment, ZnO NPs markedly improved the biochemical, renal functions, and histopathological findings. Furthermore, ZnO NPs significantly increased Nrf2-DNA-binding activity and downregulated TXNIP gene expression leading to restoration of the redox status. Additionally, ZnO NPs ameliorated AGEs levels, enhanced autophagy activity, and attenuated inflammasome activation via downregulation of NLRP3 expression and reducing IL-1β levels. Based on our results, we concluded that ZnO NPs can be considered as a promising agent for slowing the progression of DN via interplay between autophagy and Nrf2/TXNIP/NLRP3 inflammasome signaling.
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Affiliation(s)
| | - Elham Nasif
- Medical Physiology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Heba M Arakeep
- Anatomy Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Hanem Rabah
- Medical Biochemistry Department, Faculty of Medicine, Tanta University, Tanta, Egypt
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19
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Alagal RI, AlFaris NA, Alshammari GM, ALTamimi JZ, AlMousa LA, Yahya MA. Kaempferol attenuates doxorubicin-mediated nephropathy in rats by activating SIRT1 signaling. J Funct Foods 2022. [DOI: 10.1016/j.jff.2021.104918] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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20
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Treadmill Exercise Training Ameliorates Functional and Structural Age-Associated Kidney Changes in Male Albino Rats. ScientificWorldJournal 2021; 2021:1393372. [PMID: 34887703 PMCID: PMC8651424 DOI: 10.1155/2021/1393372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/10/2021] [Indexed: 12/28/2022] Open
Abstract
Aging is a biological process that impacts multiple organs. Unfortunately, kidney aging affects the quality of life with high mortality rate. So, searching for innovative nonpharmacological modality improving age-associated kidney deterioration is important. This study aimed to throw more light on the beneficial effect of treadmill exercise on the aged kidney. Thirty male albino rats were divided into three groups: young (3-4 months old), sedentary aged (23-24 months old), and exercised aged (23-24 months old, practiced moderate-intensity treadmill exercise 5 days/week for 8 weeks). The results showed marked structural alterations in the aged kidney with concomitant impairment of kidney functions and increase in arterial blood pressure with no significant difference in kidney weight. Also, it revealed that treadmill exercise alleviated theses effects in exercised aged group with reduction of urea and cystatin C. Exercise training significantly decreased glomerulosclerosis index, tubular injury score, and % area of collagen deposition. Treadmill exercise exerted its beneficial role via a significant reduction of C-reactive protein and malondialdehyde and increase in total antioxidant capacity. In addition, exercise training significantly decreased desmin immunoreaction and increased aquaporin-3, vascular endothelial growth factor, and beclin-1 in the aged kidney. This study clarified that treadmill exercise exerted its effects via antioxidant and anti-inflammatory mechanisms, podocyte protection, improving aquaporin-3 and vascular endothelial growth factor expression, and inducing autophagy in the aged kidney. This work provided a new insight into the promising role of aerobic exercise to ameliorate age-associated kidney damage.
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21
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Bau-Gaudreault L, Arndt T, Provencher A, Brayton CF. Research-Relevant Clinical Pathology Resources: Emphasis on Mice, Rats, Rabbits, Dogs, Minipigs, and Non-Human Primates. ILAR J 2021; 62:203-222. [PMID: 34877602 DOI: 10.1093/ilar/ilab028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 08/16/2021] [Accepted: 09/07/2021] [Indexed: 12/15/2022] Open
Abstract
Clinical pathology testing for investigative or biomedical research and for preclinical toxicity and safety assessment in laboratory animals is a distinct specialty requiring an understanding of species specific and other influential variables on results and interpretation. This review of clinical pathology principles and testing recommendations in laboratory animal species aims to provide a useful resource for researchers, veterinary specialists, toxicologists, and clinical or anatomic pathologists.
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Affiliation(s)
- Liza Bau-Gaudreault
- Clinical Laboratories, Charles River Laboratories - ULC, Senneville, Quebec, Canada
| | - Tara Arndt
- Labcorp Drug Development, Madison, Wisconsin, United States
| | - Anne Provencher
- Clinical Laboratories, Charles River Laboratories - ULC, Sherbrooke, Quebec, Canada
| | - Cory F Brayton
- Molecular and Comparative Pathobiology, John Hopkins University, School of Medicine, Baltimore, Maryland, USA
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22
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Zhang Q, Xu W, Xu X, Lu W, Zhao J, Zhang H, Chen W. Effects of Limosilactobacillus fermentum CCFM1139 on experimental periodontitis in rats. Food Funct 2021; 12:4670-4678. [PMID: 33928953 DOI: 10.1039/d1fo00409c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Periodontitis is a polymicrobial inflammatory disease often characterized by the excessive colonization of Porphyromonas gingivalis and Fusobacterium nucleatum, which causes alveolar bone resorption and advanced oral inflammation. This study aimed to evaluate the effect of Limosilactobacillus fermentum CCFM1139 on experimental periodontitis induced following ligature and infection with P. gingivalis and F. nucleatum in vivo. The results showed that L. fermentum CCFM1139 significantly reduced weight loss associated with periodontal inflammation (p < 0.05), while decreasing both the P. gingivalis and F. nucleatum populations within the oral cavity of rats (p < 0.05) and regulating the expression of tumor necrosis factor-alpha, interleukin (IL)-1 beta, and IL-8 in the periodontal tissue (p < 0.05). Microcomputed tomography (micro-CT) and histopathological examination revealed that L. fermentum CCFM1139 supplementation reduced the level of alveolar bone loss and bone porosity and increased bone volume (p < 0.05) in the experimental animals. Furthermore, L. fermentum CCFM1139 exhibited promising effects in preventing the deepening of the periodontal pocket and the increase in the gap between adjacent molars. Thus L. fermentum CCFM1139 was shown to have solid potential as an oral probiotic for protection against periodontitis suggesting that this may be a good candidate in the production of a new functional food for improving periodontitis.
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Affiliation(s)
- Qiuxiang Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China.
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Wei X, Wu Y, Tang H, Wang B, Wang Y, Sun W, Asenso J, Xiao F, Wang C. CP-25 ameliorates methotrexate induced nephrotoxicity via improving renal apoptosis and methotrexate excretion. J Pharmacol Sci 2021; 146:21-28. [PMID: 33858651 DOI: 10.1016/j.jphs.2021.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/29/2021] [Accepted: 02/25/2021] [Indexed: 11/16/2022] Open
Abstract
Paeoniflorin-6'-O-benzene sulfonate (CP-25) is a derivative of Paeoniflorin. We investigate beneficial effect of CP-25 on methotrexate (MTX) induced nephrotoxicity in rats. Plasma blood urea nitrogen (Bun), plasma creatinine (CREA), urine CREA and protein in the rats were quantitatively measured. Renal tissues were pathologically observed, and apoptosis was detected. Apoptosis related proteins and organic anion transporter-3 (OAT3) expression were determined by western blotting analysis. MTX induced nephrotoxicity and hematotoxicity in rats with abnormal levels of serum Bun, serum CERA, 24Â h urine protein excretion, white blood cells, platelets, plateletcrit and abnormal renal pathological appearance. Either pre-treatment or treatment of CP-25 restored normal levels of hematological and renal function parameters, and improved histopathology in rats treated with MTX. CP-25 prevented MTX induced apoptosis of renal tubular cells, and the effect was further confirmed by its regulatory effects on abnormal expression of Bax, cleaved-caspase-3, cleaved-caspase-8, Cyt-c, Bcl-2. The other important finding is co-administration of CP-25 with MTX significantly increased MTX renal excretion in the damaged rats, and the effect is supposed to be linked with its regulation on abnormal renal OAT3 expression. Taken together, CP-25 shows well protective activity against MTX induced nephrotoxicity, and this effect is via its anti-apoptosis and detoxification properties.
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Affiliation(s)
- Xiao Wei
- Blood Purification Center, First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Yijin Wu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Hao Tang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Bin Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Yong Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Wei Sun
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - James Asenso
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Feng Xiao
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Chun Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China.
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Arman T, Lynch KD, Goedken M, Clarke JD. Sub-chronic microcystin-LR renal toxicity in rats fed a high fat/high cholesterol diet. CHEMOSPHERE 2021; 269:128773. [PMID: 33143886 PMCID: PMC8276626 DOI: 10.1016/j.chemosphere.2020.128773] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/24/2020] [Accepted: 10/25/2020] [Indexed: 05/16/2023]
Abstract
Microcystin-LR (MCLR) is a liver and kidney toxin produced by cyanobacteria. Recently, it was demonstrated that MCLR exposure drives the progression of high fat/high cholesterol (HFHC) induced nonalcoholic fatty liver disease (NAFLD) to a more severe state. NAFLD is also a risk factor for chronic kidney disease (CKD), and the current study investigated MCLR renal toxicity in the context of an HFHC diet. Sprague Dawley rats were fed either a control diet or an HFHC diet for 10 weeks. After 6 weeks of diet, animals were administered either vehicle, 10 μg/kg, or 30 μg/kg MCLR via intraperitoneal injection every other day for 4 weeks. HFHC diet alone increased the renal glomerular change histopathology score, and 30 μg/kg MCLR exposure increased this score in both the control group and the HFHC group. In contrast, 30 μg/kg MCLR caused greater proteinuria and cast formation and decreased protein phosphatase 1 and 2A protein expression in the HFHC group. Urinary excretion of KIM-1 increased, but albumin and tamm-horsfall protein did not change after MCLR exposure. The general concordance between KIM-1, polyuria, proteinuria, and renal casts after MCLR exposure suggests that proximal tubule cell damage contributed to these connected pathologies. The control group adapted to repeated MCLR exposure by increasing the urinary elimination of MCLR and its metabolites, whereas this adaptation was blunted in the HFHC group. These data suggest an HFHC diet may increase the severity of certain MCLR-elicited renal toxicities.
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Affiliation(s)
- Tarana Arman
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - Katherine D Lynch
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - Michael Goedken
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ, 08901, USA
| | - John D Clarke
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA.
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Koc K, Geyikoglu F, Cakmak O, Koca A, Kutlu Z, Aysin F, Yilmaz A, Aşkın H. The targets of β-sitosterol as a novel therapeutic against cardio-renal complications in acute renal ischemia/reperfusion damage. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2021; 394:469-479. [PMID: 33048170 DOI: 10.1007/s00210-020-01984-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 09/30/2020] [Indexed: 01/17/2023]
Abstract
This research is the first to use β-sitosterol on myocardial and renal tissues in renal ischemia/reperfusion (IR) damage. Female Wistar rats were randomly divided into three groups: control (sham), renal IR (50 min ischemia - 3 h reperfusion), and renal IR + 150 mg/kg/p.o. β-sitosterol (the rats were treated with β-sitosterol orally once 1 h before the IR procedure). β-Sitosterol pretreatment caused an increase in superoxide dismutase and glutathione activities and a decrease in malondialdehyde levels in the kidney and heart. Moreover, it alleviated histopathological changes and downregulated the levels of tumor necrosis factor-alpha and interleukin-6 and upregulated the levels of endothelial nitric oxide synthase. As conclusion, the potential of β-sitosterol for renal and cardiac necrosis and apoptosis appears to act by limiting inflammatory response and oxidative stress. Thus, the potential of this compound is noteworthy and may serve as a potential therapeutic in the treatment of acute organ damages due to renal IR.
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Affiliation(s)
- Kubra Koc
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Fatime Geyikoglu
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Ozge Cakmak
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey.
| | - Aynur Koca
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Zerrin Kutlu
- Department of Biochemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Ferhunde Aysin
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
- East Anatolian High Technology Research and Application Center (DAYTAM), Ataturk University, Erzurum, Turkey
| | - Asli Yilmaz
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
- East Anatolian High Technology Research and Application Center (DAYTAM), Ataturk University, Erzurum, Turkey
| | - Hakan Aşkın
- Department of Molecular Biology and Genetics, Faculty of Science, Ataturk University, Erzurum, Turkey
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Mostafa DK, Khedr MM, Barakat MK, Abdellatif AA, Elsharkawy AM. Autophagy blockade mechanistically links proton pump inhibitors to worsened diabetic nephropathy and aborts the renoprotection of metformin/enalapril. Life Sci 2020; 265:118818. [PMID: 33275985 DOI: 10.1016/j.lfs.2020.118818] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 12/20/2022]
Abstract
AIM Proton pump inhibitors (PPIs) are widely used drugs recently linked to chronic kidney disease. However, the invloved mechanisms remained elusive. Since defective autophagy is identified as a new culprit in the pathogenesis of diabetic nephropathy (DN), we aimed to trace the link of autophagy blockade by PPIs to the progression of DN with and without the standard therapy of metformin and enalapril. MAIN METHODS Male CD1 albino mice (20-25 g) were randomly assigned to normal control or diabetic mice. Diabetes was induced by intraperitoneal streptozotocin (35 mg/kg) injection combined with high fat diet. DN mice were randomized to receive vehicle, lansoprazole (5 mg/kg), metformin (200 mg/kg), lansoprazole + metformin, metformin + enalapril (0.5 mg/kg) or the three drugs together, orally daily for four weeks. At the study end, albuminuria, fasting plasma glucose, HbA1c, renal functions and malondialdehyde were assessed. Renal tissues were examined microscopically, and autophagic changes were evaluated by immunohistochemical detection of LC3-II and p62. KEY FINDINGS Consistent with autophagic blockade, lansoprazole increased both LC3II and p62 in the glomerular and tubular cells. This was associated with impaired creatinine clearance and renal functions, enhanced albuminuria, oxidative stress and augmented DN histopathological changes. Opposite effects on autophagy markers were observed by single or combined treatment of metformin with enalapril; which also ameliorated glycemic control and signs of DN. This improvement was mitigated by combination with lansoprazole. SIGNIFICANCE Autophagy blockade by lansoprazole augmented diabetic nephropathy and opposed the reno-protective effects of metformin and enalapril. The use of PPIs in diabetes should be considered with great caution.
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Affiliation(s)
- Dalia Kamal Mostafa
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
| | - Mohamed Mostafa Khedr
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Mervat Kamel Barakat
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | | | - Amal Mohamed Elsharkawy
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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Tata CM, Sewani-Rusike CR, Oyedeji OO, Mahlakata F, Shauli M, Nkeh-Chungag BN. Senecio serratuloides extract prevents the development of hypertension, oxidative stress and dyslipidemia in nitric oxide-deficient rats. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2020; 17:/j/jcim.ahead-of-print/jcim-2018-0073/jcim-2018-0073.xml. [PMID: 32045353 DOI: 10.1515/jcim-2018-0073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 06/20/2019] [Indexed: 12/20/2022]
Abstract
Background Hypertension is a silent killer with no obvious signs and symptoms; thus, it is crucial to prevent its development. Oxidative stress and hyperlipidemia are associated risk factors for developing hypertension. This study aimed at investigating the role of a crude extract of Senecio serratuloides in preventing the development of hypertension, oxidative stress and hyperlipidemia in a rat model of nitric oxide deficiency. Methods Female Wistar rats were co-treated with Nω-Nitro L-arginine methyl ester (L-NAME) (40 mg/kg) and the hydroethanolic extract of S. Serratuloides (HESS150 or HESS300 mg/kg) for 4 weeks. Twenty-hour urine samples were collected weekly during the study. At the end of the study serum, heart and kidneys were harvested for biochemical and histopathological analysis. Results The higher dose (300 mg/kg) of the extract was more effective in preventing increase in systolic (p<0.001) and diastolic (p<0.05) blood pressure. At the end of the treatment period HESS300 treated rats had significantly (p<0.01) higher concentration of creatinine (91.24 ± 6 mg/dL) in urine and significantly (6.36 ± 0.4 mg/24 h; 0.001) lower proteinuria compared to L-NAME control rats (55.75 ± 8 mg/dL and 18.92 ± 2 mg/24 h, respectively). Creatinine clearance and glomerular filtration rate were lower in the L-NAME control group compared to all treatment groups. HESS300 prevented L-NAME-induced decrease in serum angiotensin II concentration, significantly decreased malondialdehyde concentration in serum (p<0.05) and kidneys (p<0.001). It also significantly (p<0.001) decreased low-density lipoprotein concentration while increasing the concentration of high-density lipoprotein cholesterol. It showed cardio- and reno-protective effects and significantly (p<0.01) prevented collagen deposition in these target organs. Conclusion These findings demonstrate the potential of S. Serratuloides in protecting rats from developing hypertension, hyperlipidemia and oxidative stress.
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Affiliation(s)
- Charlotte Mungho Tata
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University, p/bag x1,NMD Campus, Mthatha 5117, South Africa
| | - Constance Rufaro Sewani-Rusike
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University, p/bag x1,NMD Campus, Mthatha 5117, South Africa
| | - Opeopluwa Oyehan Oyedeji
- Department of Chemistry, Faculty of Science and Agriculture, University of Fort Hare, Alice, 5700, South Africa
| | | | - Mathulo Shauli
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University, p/bag x1,NMD Campus, Mthatha 5117, South Africa
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Nkeh-Chungag B, Tata C, Sewani-Rusike C, Oyedeji O, Gwebu E. Renoprotective effects of the hydroethanolic extract of Senecio serratuloides against N w-nitro L-arginine methyl ester-induced oxidative stress in wistar rats. Pharmacogn Mag 2020. [DOI: 10.4103/pm.pm_375_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Safari T, Shahraki MR, Miri S, Mirakzehi Bakhshani N, Niazi AA, Komeili GR, Bagheri H. The effect of angiotensin 1-7 and losartan on renal ischemic/reperfusion injury in male rats. Res Pharm Sci 2019; 14:441-447. [PMID: 31798661 PMCID: PMC6827188 DOI: 10.4103/1735-5362.268205] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Ischemia/reperfusion (I/R) is a major cause of acute kidney injury. Several studies have shown that renin angiotensin (Ang) system and activation of Ang II type 1 receptor (AT1) are involved in various forms of kidney diseases. Likewise, Ang 1-7 as a physiologic antagonist of AT1 and losartan could possibly protect the kidney against I/R damage. Therefore, we investigated renal injury by administering the drugs before and after I/R. Fifty-four male Wistar rats were randomly assigned to five groups as follows. 1, Sham operated; 2, saline group (as a control group); 3, losartan group; 4, Ang 1-7group; and 5, Ang 1-7 + losartan simultaneously. It should be noted that groups 2-5 consisted of two separate I/R-induced subgroups both receiving medication where the first groups received the treatment 15 min before induction of I/R while the medications were given to the second groups immediately after induction of I/R. Twenty four h after I/R, blood samples were collected, and then levels of serum urea nitrogen (BUN), creatinine (Cr), nitrite, malondialdehyde (MDA), lactate dehydrogenase (LDH) and total antioxidant capacity (TAC) were measured. Likewise, nitrite, MDA and TAC were measured in the homogenized kidney tissues. After the induction of I/R, the BUN, Cr, LDH, and kidney tissue damage score increased. Administration of Ang 1-7 alone or simultaneously with losartan decreased the levels of aforementioned factors. Also, kidney MDA and nitrate levels significantly increased after I/R induction (P < 0.05). According to the results of this study, it can be claimed that the effect of losartan in the presence of Mas receptor is statistically significant and kidney damage dramatically decreases.
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Affiliation(s)
- Tahereh Safari
- School of Medicine, Department of Physiology, Zahedan University of Medical Sciences, Zahedan, I.R. Iran
| | - Mohamad Reza Shahraki
- School of Medicine, Department of Physiology, Zahedan University of Medical Sciences, Zahedan, I.R. Iran
| | - Saideh Miri
- School of Medicine, Department of Physiology, Zahedan University of Medical Sciences, Zahedan, I.R. Iran
| | - Nasime Mirakzehi Bakhshani
- School of Medicine, Department of Physiology, Zahedan University of Medical Sciences, Zahedan, I.R. Iran
| | - Abbass Ali Niazi
- School of Medicine, Department of Pathology, Zahedan University of Medical Sciences, Zahedan, I.R. Iran
| | - Gholam Reza Komeili
- School of Medicine, Department of Physiology, Zahedan University of Medical Sciences, Zahedan, I.R. Iran
| | - Hossain Bagheri
- School of Medicine, Department of Medical English, Zahedan University of Medical Sciences, I.R. Iran
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Basta M, Dief AE, Ghareeb DA, Saleh SR, Elshorbagy A, El Eter E. Resveratrol ameliorates long-term structural, functional and metabolic perturbations in a rat model of donor nephrectomy: Implication of SIRT1. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Resveratrol ameliorates long-term structural, functional and metabolic perturbations in a rat model of donor nephrectomy: Implication of SIRT1. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.043\] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Togoe EB, Silva IS, Cury JL, Guarnier FA. Muscle changes with high-intensity aerobic training in an animal model of renal disease. Acta Cir Bras 2019; 34:e201900503. [PMID: 31166462 PMCID: PMC6583927 DOI: 10.1590/s0102-865020190050000003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 04/10/2019] [Indexed: 02/06/2023] Open
Abstract
Purpose: To analyze the muscle changes with high-intensity aerobic training (HIAT) in an animal model of renal disease (RD). Methods: Twenty one adult Wistar rats were divided into 3 groups: healthy sedentary (HS), RD sedentary (RDS), RD aerobic training (RDAT). RDS and RDAT were subjected to unilateral renal ischemia-reperfusion (10 min) and 21days after that, RDAT was subjected to 6 weeks HIAT (swimming). Serum creatinine (Cr) and muscle morphometry (cross-sectional area = CSA) of gastrocnemius were analyzed. Results: Cr was higher (p = 0.0053) in RDS (0.82 ± 0.04) than in the others (RDAT 0.55 ± 0.04; HS 0.55 ± 0.04). Morphometric analysis (class interval of CSA in μm2/absolute frequency of muscle fibers in each class) indicated that 50th percentile occurred in: HS 7th class (3000.00-3499.00/515), RDS, 8th class (3500.00-3999.00/484), RDAT 5th class (2000.00-2499.00/856). CSA of largest fibers in RDS, RDAT, HS was 9953.00 μm2, 9969.00 μm2,11228.00 μm2, respectively. High frequency of fibers with lower CSA occurred in 4th, 5th, 6th and 7th class in RDA, absence of fibers into 22nd, 23rd classes (RDS and RDAT). Conclusion: HIAT in an animal model of RD resulted in increased the number of muscle fibers with smaller CSA.
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Affiliation(s)
- Eliane Barbosa Togoe
- Postgraduate Program in Health and Development in Midwest Region, Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Iandara Schettert Silva
- School of Medicine, Postgraduate Program in Health and Development in Midwest Region, UFMS, Campo Grande, MS, Brazil
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Akomolafe OR, Imafidon CE, Olukiran OS, Oladele AA, Akanji BO. Sub-acute administration of lower doses of nicotine caused sex-dependent improvement of renal function in Wistar rats. Toxicol Rep 2018; 4:535-542. [PMID: 29657920 PMCID: PMC5897321 DOI: 10.1016/j.toxrep.2017.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Revised: 09/27/2017] [Accepted: 10/09/2017] [Indexed: 11/29/2022] Open
Abstract
Exposure to nicotine is associated with sex-dependent variation in electrolyte disturbances. Lower doses of sub-acute nicotine administration enhanced renal function. Nicotine-enhanced renal function is more pronounced in female than in male Wistar rats. Nicotine-enhanced renal function may be mediated through α7-nAchR.
The adverse and beneficial health effects of nicotine (NIC), the major alkaloid found in cigarettes and tobacco, are controversial. Most studies on NIC have focused on its effects on cardiovascular and nervous functions. This study aimed at determining dose- and sex-specific effects of sub-acute (28 days) NIC administration on some indices of kidney function in Wistar rats. Forty rats (20 males and 20 females), 8–9 weeks old (each housed in separate metabolic cage), were used for this study such that graded doses of NIC (1, 2 and 4 mg/kg i.p. for 28 days) were administered to both sexes while each control received distilled water at 0.2 mL/100 g i.p. Blood was collected under ketamine anesthesia (10 mg/kg i.m) for analyses and results obtained were compared at p < 0.05. The result showed beneficial alterations in plasma and urine level of creatinine, urea and uric acid (p < 0.05) as well as plasma and urine electrolyte level (Na+ and K+) in both sexes (p < 0.05). Also, there was significant improvement in creatinine clearance (p < 0.05) with no appreciable difference in their histological examination. Although these beneficial effects were more pronounced in the female than in the male (p < 0.05), administration at the highest dose showed potentially deleterious alterations from normal beneficial trend (p < 0.05) in both sexes. It was concluded that sub-acute administration of lower doses of NIC improves kidney function of Wistar rats; an effect that was more pronounced in the females than their male counterparts.
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Affiliation(s)
- Ojo Rufus Akomolafe
- Department of Physiological Sciences, Faculty of Basic Medical Sciences, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Christian Eseigbe Imafidon
- Department of Physiological Sciences, Faculty of Basic Medical Sciences, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Olaoluwa Sesan Olukiran
- Department of Physiological Sciences, Faculty of Basic Medical Sciences, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Ayowole Abraham Oladele
- Department of Medical Laboratory Science, College of Medicine, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Babatunde Oludare Akanji
- Department of Chemical Pathology, Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife, Osun State, Nigeria
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Elaidy SM, Hussain MA, El-Kherbetawy MK. Time-dependent therapeutic roles of nitazoxanide on high-fat diet/streptozotocin-induced diabetes in rats: effects on hepatic peroxisome proliferator-activated receptor-gamma receptors. Can J Physiol Pharmacol 2017; 96:485-497. [PMID: 29244961 DOI: 10.1139/cjpp-2017-0533] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Targeting peroxisome proliferator-activated receptor-gamma (PPAR-γ) is an approved strategy in facing insulin resistance (IR) for diabetes mellitus (DM) type 2. The PPAR-γ modulators display improvements in the insulin-sensitizing and adverse effects of the traditional thiazolidinediones. Nitazoxanide (NTZ) is proposed as a PPAR-γ receptor ligand with agonistic post-transcriptional effects. Currently, NTZ antidiabetic activities versus pioglitazone (PIO) in a high-fat diet/streptozotocin rat model of type 2 diabetes was explored. Diabetic adult male Wistar rats were treated orally with either PIO (2.7 mg·kg-1·day-1) or NTZ (200 mg·kg-1·day-1) for 14, 21, and 28 days. Body masses, fasting blood glucose, IR, lipid profiles, and liver and kidney functions of rats were assayed. Hepatic glucose metabolism and PPAR-γ protein expression levels as well as hepatic, pancreatic, muscular, and renal histopathology were evaluated. Significant time-dependent euglycemic and insulin-sensitizing effects with preservation of liver and kidney functions were offered by NTZ. Higher hepatic levels of glucose-6-phosphatase and glucose-6-phosphate dehydrogenase enzymes and PPAR-γ protein expressions were acquired by NTZ and PIO, respectively. NTZ could be considered an oral therapeutic strategy for DM type 2. Further systematic NTZ/PPAR-γ receptor subtype molecular activations are recommended. Simultaneous use of NTZ with other approved antidiabetics should be explored.
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Affiliation(s)
- Samah M Elaidy
- a Department of Clinical Pharmacology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Mona A Hussain
- b Department of Physiology, Faculty of Medicine, Portsaid University, Portsaid, Egypt
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35
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Lima-Posada I, Portas-Cortés C, Pérez-Villalva R, Fontana F, RodrÃguez-Romo R, Prieto R, Sánchez-Navarro A, RodrÃguez-González GL, Gamba G, Zambrano E, Bobadilla NA. Gender Differences in the Acute Kidney Injury to Chronic Kidney Disease Transition. Sci Rep 2017; 7:12270. [PMID: 28947737 PMCID: PMC5612964 DOI: 10.1038/s41598-017-09630-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 07/27/2017] [Indexed: 12/19/2022] Open
Abstract
This study evaluated if there is a sexual dimorphism in the acute kidney injury (AKI) to chronic kidney disease (CKD) transition and the time-course of the potential mechanisms involved in the dimorphic response. Female and male rats were divided into sham-operated or underwent 45-min renal ischemia (F + IR, and M + IR). All groups were studied at 24-h and 1, 2, 3, or 4-months post-ischemia. Additionally, oophorectomized rats were divided into sham or IR groups. After 24-h, AKI extent was simllar in females and males, but female rats exhibited less oxidative stress and increased renal GSH content. After 4-months and despite similar AKI, the M + IR group developed CKD characterized by proteinuria, tubulointerstitial fibrosis, glomerular hypertrophy, increased oxidative stress and a reduction in HIF1α and VEGF from the 1st-month and persisting throughout the time-course studied. Interestingly, the F + IR group did not develop CKD due to lesser oxidative stress and increased eNOS, TGFβ and HIF1α mRNA levels from the 1st-month after IR. Whereas, oophorectomized rats did develop CKD. We found a sexual dimorphic response in the AKI to CKD transition. Early antioxidant defense and higher TGFβ, HIF1α and eNOS were among the renoprotective mechanisms that the F + IR group demonstrated.
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Affiliation(s)
- Ixchel Lima-Posada
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Departament of Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Cinthya Portas-Cortés
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Departament of Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Rosalba Pérez-Villalva
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Departament of Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Francesco Fontana
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Departament of Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Roxana RodrÃguez-Romo
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Departament of Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Rodrigo Prieto
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Departament of Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Andrea Sánchez-Navarro
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Departament of Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Guadalupe L RodrÃguez-González
- Departament of Reproductive Biology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Gerardo Gamba
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Departament of Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Elena Zambrano
- Departament of Reproductive Biology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Norma A Bobadilla
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico. .,Departament of Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
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36
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Fahmi ANA, Shehatou GSG, Shebl AM, Salem HA. Febuxostat exerts dose-dependent renoprotection in rats with cisplatin-induced acute renal injury. Naunyn Schmiedebergs Arch Pharmacol 2016; 389:819-30. [DOI: 10.1007/s00210-016-1258-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 05/09/2016] [Indexed: 12/13/2022]
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37
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Urine biochemistry assessment in critically ill patients: controversies and future perspectives. J Clin Monit Comput 2016; 31:539-546. [PMID: 27038161 DOI: 10.1007/s10877-016-9871-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 03/30/2016] [Indexed: 12/17/2022]
Abstract
In the past, urine biochemistry was a major tool in acute kidney injury (AKI) management. Classic papers published some decades ago established the values of the urine indices which were thought to distinguish "pre-renal" (functional) AKI attributed to low renal perfusion and "renal" (structural) AKI attributed to acute tubular necrosis (ATN). However, there were a lot of drawbacks and limitations in these studies and some recent articles have questioned the utility of measuring urine electrolytes especially because they do not seem to adequately inform about renal perfusion nor AKI duration (transient vs. persistent). At the same time, the "pre-renal" paradigm has been consistently criticized because hypoperfusion followed by ischemia and ATN does not seem to explain most of the AKI developing in critically ill patients and distinct AKI durations do not seem to be clearly related to different pathophysiological mechanisms or histopathological findings. In this new context, other possible roles for urine biochemistry have emerged. Some studies have suggested standardized changes in the urine electrolyte composition preceding increases in serum creatinine independently of AKI subsequent duration, which might actually be due to intra-renal microcirculatory changes and activation of sodium-retaining mechanisms even in the absence of impaired global renal blood flow. In the present review, the points of controversy regarding urine biochemistry assessment were evaluated as well as future perspectives for its role in AKI monitoring. An alternative approach for the interpretation of measured urine electrolytes is proposed which needs further larger studies to be validated and incorporated in daily ICU practice.
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38
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Maleki M, Nematbakhsh M. Gender Difference in Renal Blood Flow Response to Angiotensin II Administration after Ischemia/Reperfusion in Rats: The Role of AT2 Receptor. Adv Pharmacol Sci 2016; 2016:7294942. [PMID: 27034657 PMCID: PMC4806269 DOI: 10.1155/2016/7294942] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Accepted: 02/07/2016] [Indexed: 01/01/2023] Open
Abstract
Background. Renal ischemia/reperfusion (I/R) is one of the major causes of kidney failure, and it may interact with renin angiotensin system while angiotensin II (Ang II) type 2 receptor (AT2R) expression is gender dependent. We examined the role of AT2R blockade on vascular response to Ang II after I/R in rats. Methods. Male and female rats were subjected to 30 min renal ischemia followed by reperfusion. Two groups of rats received either vehicle or AT2R antagonist, PD123319. Mean arterial pressure (MAP), and renal blood flow (RBF) responses were assessed during graded Ang II (100, 300, and 1000 ng/kg/min, i.v.) infusion at controlled renal perfusion pressure (RPP). Results. Vehicle or antagonist did not alter MAP, RPP, and RBF levels significantly; however, 30 min after reperfusion, RBF decreased insignificantly in female treated with PD123319 (P = 0.07). Ang II reduced RBF and increased renal vascular resistance (RVR) in a dose-related fashion (P dose < 0.0001), and PD123319 intensified the reduction of RBF response in female (P group < 0.005), but not in male rats. Conclusion. The impact of the AT2R on vascular responses to Ang II in renal I/R injury appears to be sexually dimorphic. PD123319 infusion promotes these hemodynamic responses in female more than in male rats.
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Affiliation(s)
- Maryam Maleki
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan 81745, Iran
- Department of Physiology, Isfahan University of Medical Sciences, Isfahan 81745, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan 81745, Iran
- Department of Physiology, Isfahan University of Medical Sciences, Isfahan 81745, Iran
- Isfahan MN Institute of Basic and Applied Sciences Research, Isfahan 81546, Iran
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